oj.uz

Submission #1104597

# Submission time Handle Problem Language Result Execution time Memory
1104597 2024-10-24T06:13:27 Z kungarooo Tropical Garden (IOI11_garden) C++14
69 / 100
 5000 ms 25676 KB 
#include "garden.h"
#include "gardenlib.h"
#include<bits/stdc++.h>
#define B 150000
using namespace std;
vector<int> v(2*B);
vector<vector<int>> adj(B),T(B*2);
vector<char> vis(2*B);
int sz=0;
bool findcyclic(int x,int st){
  if(vis[x]&&x==st)return 1;
  else if(vis[x])return 0;
  vis[x]=1;
  sz++;
  bool ret=findcyclic(v[x],st);
  vis[x]=0;
  return ret;
}
int bfs(int x,int ii,int sz){
  queue<pair<int,int>> q;
  vector<char> vv(B*2);
  q.push({x,0});
  int ans=0;
  while(!q.empty()){
    int node=q.front().first,we=q.front().second;
    q.pop();
    if(we>ii||vv[node])continue;
    vv[node]=1;
    if(sz==0){
      if(we==ii&&node<B)ans++;
    }else{
      if(0==(ii-we)%sz&&node<B)ans++;
    }
    for(auto i:T[node]){
      if(!vv[i])q.push({i,we+1});
    }
  }
  return ans;
}
void count_routes(int N, int M, int P, int R[][2], int Q, int G[]){
  for(int i=0;i<M;i++){
    adj[R[i][0]].push_back(R[i][1]);
    adj[R[i][1]].push_back(R[i][0]);
  }
  for(int i=0;i<N;i++){
    if(i==adj[adj[i][0]][0])v[i]=adj[i][0]+B;
    else v[i]=adj[i][0];
    if(adj[i].size()>=2){
      if(adj[adj[i][1]][0]==i)v[B+i]=adj[i][1]+B;
      else v[B+i]=adj[i][1];
    }
    else v[B+i]=v[i];
  }
  int sz1=0,sz2=0;
  if(findcyclic(P,P)){
    sz1=sz;
  }
  sz=0;
  if(findcyclic(P+B,P+B)){
    sz2=sz;
  }
  sz=0;
  for(int i=0;i<N;i++){
    T[v[i]].push_back(i);
    T[v[i+B]].push_back(i+B);
  }
  for(int i=0;i<Q;i++)answer(bfs(P,G[i],sz1)+bfs(P+B,G[i],sz2));
}

Subtask #1
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 12840 KB Output is correct
2 Correct 6 ms 12892 KB Output is correct
3 Correct 8 ms 12880 KB Output is correct
4 Correct 6 ms 12624 KB Output is correct
5 Correct 5 ms 12624 KB Output is correct
6 Correct 6 ms 12880 KB Output is correct
7 Correct 6 ms 12624 KB Output is correct
8 Correct 6 ms 12840 KB Output is correct
9 Correct 7 ms 12880 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 12840 KB Output is correct
2 Correct 6 ms 12892 KB Output is correct
3 Correct 8 ms 12880 KB Output is correct
4 Correct 6 ms 12624 KB Output is correct
5 Correct 5 ms 12624 KB Output is correct
6 Correct 6 ms 12880 KB Output is correct
7 Correct 6 ms 12624 KB Output is correct
8 Correct 6 ms 12840 KB Output is correct
9 Correct 7 ms 12880 KB Output is correct
10 Correct 6 ms 12624 KB Output is correct
11 Correct 13 ms 16648 KB Output is correct
12 Correct 20 ms 17504 KB Output is correct
13 Correct 38 ms 25676 KB Output is correct
14 Correct 72 ms 23896 KB Output is correct
15 Correct 69 ms 24064 KB Output is correct
16 Correct 48 ms 21320 KB Output is correct
17 Correct 48 ms 20768 KB Output is correct
18 Correct 22 ms 17488 KB Output is correct
19 Correct 58 ms 23880 KB Output is correct
20 Correct 65 ms 24148 KB Output is correct
21 Correct 59 ms 21320 KB Output is correct
22 Correct 51 ms 20552 KB Output is correct
23 Correct 70 ms 24648 KB Output is correct

Subtask #3
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 12840 KB Output is correct
2 Correct 6 ms 12892 KB Output is correct
3 Correct 8 ms 12880 KB Output is correct
4 Correct 6 ms 12624 KB Output is correct
5 Correct 5 ms 12624 KB Output is correct
6 Correct 6 ms 12880 KB Output is correct
7 Correct 6 ms 12624 KB Output is correct
8 Correct 6 ms 12840 KB Output is correct
9 Correct 7 ms 12880 KB Output is correct
10 Correct 6 ms 12624 KB Output is correct
11 Correct 13 ms 16648 KB Output is correct
12 Correct 20 ms 17504 KB Output is correct
13 Correct 38 ms 25676 KB Output is correct
14 Correct 72 ms 23896 KB Output is correct
15 Correct 69 ms 24064 KB Output is correct
16 Correct 48 ms 21320 KB Output is correct
17 Correct 48 ms 20768 KB Output is correct
18 Correct 22 ms 17488 KB Output is correct
19 Correct 58 ms 23880 KB Output is correct
20 Correct 65 ms 24148 KB Output is correct
21 Correct 59 ms 21320 KB Output is correct
22 Correct 51 ms 20552 KB Output is correct
23 Correct 70 ms 24648 KB Output is correct
24 Correct 22 ms 12624 KB Output is correct
25 Correct 151 ms 16664 KB Output is correct
26 Correct 90 ms 17488 KB Output is correct
27 Execution timed out 5050 ms 25648 KB Time limit exceeded
28 Halted 0 ms 0 KB -